Mekong River Commission Regiona l Flood Management and Mitigation Centre Weekly Dry Season Situation Report for the Mekong River Basin Prepared at: //, covering the week from the st to th ch. Weather Patterns, General Behaviour of the Mekong River and Dry Season Situation General weather patterns: No critical weather during last week General behaviour of the Mekong River: Compared to the long-term average (LTA), water levels from Chiang Sean to Kratie weree fluctuating above the LTA; from Kompong Cham to Chau Doc were fluctuating just about and below the LTA. For stations from Chiang Saen and Luang Prabang Compared to long term average (LTA), during last week the water levels were above the LTA. For stations from Chiang Khan, Vientiane and Nong Khai and Paksane above the LTA. For stations from Nakhon Phanom to Pakse above the LTA. For stations from Stung Treng to Kompong Cham above the LTA, except Kompong Cham that was about the LTA. For stations from to Prek Kdam below and about the LTA. Tan Chau and Chau Doc below the LTA. Dry season situation There were some rainfalls in a few locations at Luang Prabang, Paksane, Kratie and Tan Chau in LMB and the maximumm accumulated rainfall of. mm was at Tan Chau station (see Table A). For more details seee the following annexes: - Tables for observed water levels and rainfall for the last week in Annex A - The water levels graphs showing the observed water levels for the season in Annex B MRC Weekly Dry Season Situation Report Week st to th ch Page
Annex A: Graphs and Tables Table A: observed water levels Unit: m Jinghong Chiang Saen Luang Prabang Chiang Khan Vientiane Nongkhai Paksane Nakhon Phanom Thakhek M ukdahan Savannakhet / -...................... / -...................... / -...................... / -...................... / -...................... / -...................... / -...................... / -...................... Khong Chiam P akse Stung Treng K r a tie Kom pong Cham ( B a s s a c ) P o r t Koh Khel Neak Luong Prek Kdam Tan Chau Chau D oc Table A: observed rainfall. Unit: mm Jinghong Chiang Saen Luang Prabang Chiang Khan Vientiane Nongkhai Paksane Nakhon Phanom Thakhek M ukdahan Savannakhet / -. nr. nr. nr. nr. nr. nr nr nr nr nr - nr nr nr nr nr / -. nr. nr. nr. nr. nr. nr nr nr nr nr - nr nr nr nr nr / -. nr. nr. nr. nr. nr. nr nr nr nr nr - nr nr nr nr nr / -. nr. nr. nr. nr. nr. nr nr nr nr nr - nr nr nr nr nr / -... nr. nr. nr. nr. nr nr nr nr nr - nr nr nr nr nr / -. nr. nr... nr. nr. nr nr. nr nr - nr nr nr nr nr / -. nr. nr. nr. nr. nr. nr nr nr nr nr - nr nr nr nr nr / -. nr. nr. nr. nr. nr. nr nr nr nr nr - nr nr nr. nr Sum RF...................... Khong Chiam Pakse Stung Treng Kratie Kom pong Cham (Bassac) Port Koh Khel Neak Luong Prek Kdam Tan Chau Chau Doc nr: no rain Page MRC Weekly Dry Season Situation Report Week st to th ch
Annex B: Season Water Level Graphs This Annex has the water level graphs of the report date. These graphs are distributed weekly by email together with the River Monitoring Bulletin. HYDROGRAPH AT AM OF MEKONG TONLE SAP AND BASSAC AT MAINSTREAM STATIONS IN DRY SEASON FROM NOVEMBER TO MAY Water Level of Mekong at Chiang Saen - - - - - - - - - - - - - - - - Min WL Average- - - - - Water Level of Mekong at Luang Prabang - - - - - - - - - - - - - - - - Min WL Average- - - - - Water Level of Mekong at Chiang Khan - - - - - - - - - - - - - - - - Min WL Average- - - - - MRC Weekly Dry Season Situation Report Week st to th ch Page
Water Level of Mekong at Vientiane - - - - - - - - - - - - - - - - - Min WL Average- - - - - Water Level of Mekong at Nong Khai - - - - - - - - - - - - - - - - Min WL Average- - - - - Water Level of Mekong at Paksane - - - - - - - - - - - - - - - - Min WL Average- - - - - Water Level of Mekong at Nakhon Phanom - - - - - - - - - - - - - - - - Min WL Average- - - - - Page MRC Weekly Dry Season Situation Report Week st to th ch
Water Level of Mekong at Mukdahan - - - - - - - - - - - - - - - - Min WL Average- - - - - Water Level of Mekong at Pakse - - - - - - - - - - - - - - - - Min WL Average- - - - - Water Level of Mekong at Stung Treng - - - - - - - - - - - - - - - - Min WL Average- - - - - Water Level of Mekong at Kratie - - - - - - - - - - - - - - - - Min WL Average- - - - - MRC Weekly Dry Season Situation Report Week st to th ch Page
Water Level of Mekong at Kampong Cham - - - - - - - - - - - - - - - - Min WL Average- - - - - Water Level of Mekong at Chaktomuk - - - - - - - - - - - - - - - - Min WL Average- - - - - Water Level of Bassac at Koh Khel - - - - - - - - - - - - - - - - Min WL Average- - - - - Water Level of Mekong at Neak Luong - - - - - - - - - - - - - - - - Min WL Average- - - - - Page MRC Weekly Dry Season Situation Report Week st to th ch
Water Level of Tonle Sap at Prek Kdam - - - - - - - - - - - - - - - - Min WL Average- - - - Water Level of Mekong at Tan Chau - - - - - - - - - - - - - - - - - Min WL Average- - - - - Water Level of Bassac at Chau Doc - - - - - - - - - - - - - - - - - Min WL Average- - - - - MRC Weekly Dry Season Situation Report Week st to th ch Page